CN102788072A - Purpose-made connecting piece - Google Patents
Purpose-made connecting piece Download PDFInfo
- Publication number
- CN102788072A CN102788072A CN2012102803316A CN201210280331A CN102788072A CN 102788072 A CN102788072 A CN 102788072A CN 2012102803316 A CN2012102803316 A CN 2012102803316A CN 201210280331 A CN201210280331 A CN 201210280331A CN 102788072 A CN102788072 A CN 102788072A
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- CN
- China
- Prior art keywords
- boss
- connecting piece
- screw
- made connecting
- flat surfaces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a purpose-made connecting piece which has high fastening performance. The purpose-made connecting piece comprises a screw and a screw cap. The base part of the screw is an abnormal boss; the bottom part of the boss is a cylinder; two opposite sides at the upper part of the boss are parallel flat surfaces; and the base part of the screw and the upper part of the boss are integrated. According to the invention, the abnormal boss is arranged at the base part of the screw, the cylinder is arranged at the bottom of the boss, and the two opposite sides at the upper part of the boss are parallel flat surfaces; and when the purpose-made connecting piece is used, the upper part of the boss is embedded into the trough type holes of two guard boards, the two flat surfaces at the upper part of the boss are respectively adjoined with two corresponding flat surfaces inside the trough type holes to prevent the two guard boards from rotating. In such a way, the purpose-made connecting piece reaches the purposes of clamping and fixing the two guard boards and preventing the relative rotation of the two guard boards.
Description
Technical field
The present invention relates to a kind of link.
Background technique
The claimant has developed a cover coal mine fully-mechanized mining with moving holder device; The single-column connecting base backplate of this device adopts general bolton when helping backplate to be connected with chute, and bolt can only lean on fastening force that two backplates are clamped, and two plates also can produce the phenomenon of slide relative or rotation when still working; Because the attachment hole of two backplates all adopts the grooved hole; The cross section of screw rod be circular constraint not rotatablely moving of two backplates, the time one is long, makes nut loosening easily.
Summary of the invention
The purpose of this invention is to provide the higher special connecting piece of a kind of fastening performance.
Technological scheme of the present invention is: comprise screw rod and nut, the base portion of said screw rod is special-shaped boss, and this boss bottom is a cylindrical body, the parallel each other plane of two relative edges on boss top, and screw base and boss top are structure as a whole.
Because adopting the base portion of screw rod among the present invention is the structure of special-shaped boss, and be cylindrical body bottom this boss, the parallel each other plane of two relative edges on boss top; During use; Boss top embeds in the grooved hole of two backplates, two planes on boss top respectively with the grooved hole in two corresponding planes press close to, two backplates can not be produced rotatablely move; Thereby reach two backplates that to be fixedly clamped, can prevent that again two backplates from counterrotating purpose taking place.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain, but do not constitute any restriction of the present invention.Shown in Figure 1, the present invention includes screw rod and nut, the base portion of said screw rod is special-shaped boss 1, this boss 1 bottom is a cylindrical body, the parallel each other plane of two relative edges on boss 1 top, screw base and boss 1 top are structure as a whole.
During use, boss 1 top is penetrated in the grooved hole of two backplates, two planes that make boss 1 top respectively with the grooved hole in two corresponding planes press close to; Because this boss 1 bottom is a cylindrical body; This cylindrical diameter is greater than the distance between the both sides, grooved hole, and therefore, boss 1 can not pass the grooved hole; Again nut is screwed on the screw rod nut and screwed with two fastening getting final product of backplate.After above-mentioned installation, two backplates can not be produced rotatablely move, thereby reach two backplates that can be fixedly clamped, can prevent that again two backplates from counterrotating purpose taking place.
Claims (1)
1. special link; Comprise screw rod and nut, it is characterized in that: the base portion of said screw rod is special-shaped boss (1), and this boss (1) bottom is a cylindrical body; The parallel each other plane of two relative edges on boss (1) top, screw base and boss (1) top is structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102803316A CN102788072A (en) | 2012-08-08 | 2012-08-08 | Purpose-made connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102803316A CN102788072A (en) | 2012-08-08 | 2012-08-08 | Purpose-made connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102788072A true CN102788072A (en) | 2012-11-21 |
Family
ID=47153587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102803316A Pending CN102788072A (en) | 2012-08-08 | 2012-08-08 | Purpose-made connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102788072A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2538157A (en) * | 2015-04-06 | 2016-11-09 | Simpson Strong-Tie Company Inc | Fastener for low density materials |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937608Y (en) * | 2006-07-07 | 2007-08-22 | 许泰平 | Positioning screw for outer connector locked |
| CN201129345Y (en) * | 2007-08-17 | 2008-10-08 | 纬泰机械(上海)有限公司 | T type nut and T type bolt |
| CN201187508Y (en) * | 2008-05-02 | 2009-01-28 | 徐尚仁 | Tandem loading stationary type nonstandard screw nail |
| CN201475119U (en) * | 2009-09-07 | 2010-05-19 | 淮南市顺辉锚固有限公司 | Adjustable special-shaped bolt |
| CN201475122U (en) * | 2009-09-07 | 2010-05-19 | 淮南市顺辉锚固有限公司 | Adjustable special-shaped bolt |
| CN202851582U (en) * | 2012-08-08 | 2013-04-03 | 山西潞安集团司马煤业有限公司 | Special connecting element |
-
2012
- 2012-08-08 CN CN2012102803316A patent/CN102788072A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937608Y (en) * | 2006-07-07 | 2007-08-22 | 许泰平 | Positioning screw for outer connector locked |
| CN201129345Y (en) * | 2007-08-17 | 2008-10-08 | 纬泰机械(上海)有限公司 | T type nut and T type bolt |
| CN201187508Y (en) * | 2008-05-02 | 2009-01-28 | 徐尚仁 | Tandem loading stationary type nonstandard screw nail |
| CN201475119U (en) * | 2009-09-07 | 2010-05-19 | 淮南市顺辉锚固有限公司 | Adjustable special-shaped bolt |
| CN201475122U (en) * | 2009-09-07 | 2010-05-19 | 淮南市顺辉锚固有限公司 | Adjustable special-shaped bolt |
| CN202851582U (en) * | 2012-08-08 | 2013-04-03 | 山西潞安集团司马煤业有限公司 | Special connecting element |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2538157A (en) * | 2015-04-06 | 2016-11-09 | Simpson Strong-Tie Company Inc | Fastener for low density materials |
| GB2538157B (en) * | 2015-04-06 | 2019-03-13 | Simpson Strong Tie Co Inc | Fastener for low density materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121121 |